I am probably the worst possible person to answer you because I am so new here, but I looked at your profile and it looks like you've been a member for 8 months... I have maybe been here eight days, so I really have no business talking. BUT, that's never stopped me. (edit in, so fifteen days. But actually on here maybe eight of those.)
Try the game threads and the random threads? I just discovered them and I'm enjoying them very much, they're mostly light and social and it feels nice and warm there. Maybe people you interact with on the game threads will respond to you on the more serious ones, once they feel like they "know" you. That's if you've been posting mostly to serious discussions, which it sounds like you have been.
But again, I'm so new here I should probably just hush; I don't mean to be presumptuous More seasoned people will probably have more useful input.
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"I believe you find life such a problem because you think there are the good people and the bad people," said the man. "You're wrong, of course. There are, always and only, the bad people, but some of them are on opposite sides."
-- Terry Pratchett, Guards! Guards!